Found out this fact today. Doesn't help me because I flat out refuse to buy grocery store vegetables (I'd have to be starving, I think), but for those of the world who aren't so fortunate to be blessed with a CSA and farmer's market, here's a tip on identifying genetically modified veggies at the store:
Look for the PLU codes on the labels stuck on your fruits and veggies.
* A four-digit number means it's conventionally grown.
* A five-digit number beginning with 9 means it's organic.
* A five-digit number beginning with 8 means it's genetically modified.
Who knew! Tip from idealbite.com.